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Comparative Study
. 2004 Oct;28(5):274-7.
doi: 10.1007/s00264-004-0572-z. Epub 2004 Aug 17.

Stability of hip hemiarthroplasties

James Varley  1 , Martyn J Parker
Affiliations
Comparative Study

Stability of hip hemiarthroplasties

James Varley et al. Int Orthop. 2004 Oct.

Abstract
in English, French

It has been stated in the literature that a bipolar hemiarthroplasty has a lower risk of dislocation compared to a unipolar hemiarthroplasty. As this statement has not been substantiated we undertook a systematic review of the literature of published articles from the last 40 years. In addition we used our own database of hip fractures. One hundred and thirty-three published articles were included in the review to give a total of 23,107 cases. The overall dislocation rate for all types of hemiarthroplasty was 791/23,107 (3.4%). An increased risk of dislocation was associated with a posterior surgical approach and the use of a cemented prosthesis. After adjustment for surgical approach and the use of cement there was no difference in risk of dislocation between unipolar and bipolar hemiarthroplasties. There was an increased risk of open reduction for a bipolar hemiarthroplasty.

Il a été affirmé dans la littérature qu’une hémiarthroplastie bipolaire à un risque inférieur de luxation comparé à une hémiarthroplastie unipolaire. Comme cette déclaration n’a pas été établie nous avons entrepris une révision systématique de la littérature pour étudier les articles publiés au cours des 40 dernières années. De plus nous avons utilisé notre propre base de données de fractures de la hanche. 133 articles publiés ont été inclus dans la révision pour donner un total de 23107 cas. Le taux global de luxations pour tous les types d’hémiarthroplastie était 791/23107 (3.4%). Un risque augmenté de luxation a été associé avec un abord chirurgical postérieur et l’usage d’une prothèse cimentée. Après ajustement pour l’abord chirurgical et l’usage de ciment il n’y avait aucune différence dans le risque de luxation entre hémiarthroplasties unipolaires et bipolaires. Il y avait un risque augmenté de nécessité de réduction ouverte pour les luxations d’hémiarthroplasties bipolaires.

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